Ludovico Napoli, Ph.D. candidate, and Dr. Márton Karsai, associate professor at CEU’s Department of Network and Data Science, have recently published a paper on “Socioeconomic reorganization of communication and mobility networks in response to external shocks” in the Proceedings of the National Academy of Sciences (PNAS). This collaborative effort with UNICEF and the IT University of Copenhagen sheds light on the profound changes in network segregation patterns during the initial wave of COVID-19 in Sierra Leone.